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HADOOP-12191. Bzip2Factory is not thread safe. Contributed by Brahma Reddy Battula. 

(cherry picked from commit 4084eaf943)
This commit is contained in:
Tsuyoshi Ozawa 2015-07-14 19:13:45 +09:00
parent 5f58be7dd4
commit 64059d8884
2 changed files with 4 additions and 1 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -487,6 +487,9 @@ Release 2.7.2 - UNRELEASED
HADOOP-12186. ActiveStandbyElector shouldn't call monitorLockNodeAsync HADOOP-12186. ActiveStandbyElector shouldn't call monitorLockNodeAsync
multiple times (zhihai xu via vinayakumarb) multiple times (zhihai xu via vinayakumarb)
HADOOP-12191. Bzip2Factory is not thread safe. (Brahma Reddy Battula
via ozawa)
Release 2.7.1 - 2015-07-06 Release 2.7.1 - 2015-07-06
INCOMPATIBLE CHANGES INCOMPATIBLE CHANGES

2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/bzip2/Bzip2Factory.java
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@ -50,7 +50,7 @@ public class Bzip2Factory {
* @return <code>true</code> if native-bzip2 is loaded & initialized * @return <code>true</code> if native-bzip2 is loaded & initialized
* and can be loaded for this job, else <code>false</code> * and can be loaded for this job, else <code>false</code>
*/ */
public static boolean isNativeBzip2Loaded(Configuration conf) { public static synchronized boolean isNativeBzip2Loaded(Configuration conf) {
String libname = conf.get("io.compression.codec.bzip2.library", String libname = conf.get("io.compression.codec.bzip2.library",
"system-native"); "system-native");
if (!bzip2LibraryName.equals(libname)) { if (!bzip2LibraryName.equals(libname)) {